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Finding the Fourth Proportional to 351,426.60, 484,958.34 and 198,471.06

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Solution

The fourth proportional to 351,426.60, 484,958.34 and 198,471.06 is: 273,884.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,426.60 : 484,958.34 = 198,471.06 : x
  2. Step 2: Convert to fraction form
    351,426.60/484,958.34 = 198,471.06/x
  3. Step 3: Cross multiply
    351,426.60x = 484,958.34 × 198,471.06
  4. Step 4: Simplify right side
    351,426.60x = 96,250,195,795.64
  5. Step 5: Solve for x
    x = 96,250,195,795.64/351,426.60
  6. Step 6: Final answer
    x = 273,884.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.